Apparatus for straining liquids.



E. E. HAUER.

APPARATUS FOR STRAINING LIQUIDS.

APPLICATION FILED 11017.14, 1910.

Patented Aug. 22, 1911.

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E. E. HAUER. APPARATUS FOR STRAINING LIQUIDS.

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B. E. HAUER. APPARATUS FOR STRAINING LIQUIDS.

APPLICATION FILED NOV. 14, 1910. 1,001,027. Patented Aug. 22, 1911.

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COLUMBIA PLANOGRAPM c ELMER E. :HAUER, OF SPRINGFIELD, OHIO, ASSIGNOR TOTHE LAGONDA MANUFAC- TURING COMPANY, OF SPRINGFIELD, OHIO, A CORPORATIONOF OHIO.

APPARATUS FOR STRAINING LIQUIDS.

Application filed November 14, 1910.

To all whom it may concern:

Be it known that I, ELMER E. HAUER, a citizen of the United States,residing at Springfield, in the county of Clark and State of Ohio, haveinvented certain new and useful Improvements in Apparatus for StrainingLiquids, of which the following is a specification, reference being hadtherein to the accompanying drawings.

My invention relates to an apparatus for straining liquids and moreparticularly to an apparatus of this character arranged in such manneras to render the strainer element self-cleansing.

The object of my invention is to provide an apparatus for strainingliquids in which the strainer element does not have to be removed fromits casing for cleansing but is cleansed by a reverse flow of fluid. Itis particularly adapted for use in straining the water supply tocondensers and to blast furnaces, and is so arranged that the dischargefrom the condenser, the cooling device of the furnace or like vessel orreceiver is utilized for cleansing the strainer element.

A further object is to provide a strainer having a plurality of strainerelements with means to direct the flow through any one of the strainerelements while a reverse flow is cleansing the others.

A further object is to so arrange the device that the flow of the fluidwill be uninterrupted.

With these and other objects in view my invention consists of theconstructions and combinations hereinafter described and set forth inthe claims.

In the accompanying drawings Figure 1 is a longitudinal section of astraining apparatus embodying my invention. Fig. 2 is a section on theline A A of Fig. 1. Fig. 3 is a section, partly in elevation, on theline B B of Fig. 1. Figs. 4 and 6 show ports of valve in position todirect the flow to strain the liquid in one of the strainer elements andflush or wash out the refuse matter from the other strainer elements,and Figs. 5 and 7 show the ports of the valve in position to reverse theoperation. Fig. 8 shows an outline of strainer, pump, condenser or otherreceiving vessel with direct and return connections and Fig. 9 is a likeoutline except that the return connection is to an independent source ofsupply.

Specification of Letters Patent.

Patented Aug. 22, 1911.

Serial No. 592,175.

having partition walls 1 forming straining chambers 2 and 3 withopenings 1 and flanges 5 adapted to be connected with the source ofsupply; and an opening 6 with flange? is provided, adapted to beconnected with a condenser or other vessel or device in which the liquidis to be employed; and I further provide an opening 8 with a flange 9adapted to be connected with the condenser or other vessel for a returnflow. The partition walls 1 of the casing also form a chamber or openingin which a hollow plug valve 10 is seated having a double set of ports,the upper set 11 and 12 being adapted to register with ports 18 and 14in the partition wall 1; and the lower set of ports 15 and 16 beingadapted to register with the ports 17 and 18 and the opening 8 of thecasing. end of the valve 10 has a projection 10 extending through anopening in the casing, a stufiing box 19 being provided as shown; and anut 20 screw-threaded to the projection 10 and abutting the casing holdsthe valve plug in its seat, a jam nut 21 also being shown. The lower endof the projection 10 is square to receive a lever 22 and a stop 23secured thereto by a cap-screw 24. Said lever is employed to turn thevalve The lower on the casing to limit the movement of the valve plug.

The strainer elements I have shown in the form of baskets 26, one foreach straining chamber, having their open ends opposite the supplyopenings. These baskets areintroduced into the straining chambersthrough openings 27 in the casing, the casing having grooves 28 whichengage flanges 29 of the baskets to hold them in place. Covers 30 boltedto the casing close the openings 27, and these, covers can be removed totake out the baskets for renewal or repairs.

The pump will ordinarily be placed in the pipe line connecting opening 6of the strainer casing to the condenser or other receiving vessel andthe flow will be through the same and back to the opening 8 of thestrainer casing through a pipe connection from said opening to thecondenser; but in pump 34 being placed in this pipe line 5 anda returnpipe 35 connects the condenser with the opening 8 of the strainercasing. In Fig.

9 I have shown the strainer 31, the opening 6 of the strainer casingbeing connected by the pipe 32 with a boiler or other receiving vessel36 the pump 34 being placed in this pipe line; and the reverse flow isin this case supplied to the opening 8 of the strainer casing by a pump37 having a pipe 38 secured to the casing, the suction pipe 39 for saidpump being connected to any suitable source of supply. It will be seenthat when the valve is turned to the position shown in Figs. 4 and 6 theflow will be through the left-hand basket from the opening 4 for saidbasket, through the ports 13 and 12 and thence through the valve andopening 6; and the reverse flow will be through the opening 8, ports 15,16 and 17 thence through the right-hand basket and the opening4 for saidbasket; and when the valve is turned to the position shown in Figs. 5and 7 the flow. will be through the right-hand basket from the opening 4for said basket, through the ports 14 and 11 and thence through thevalve and opening 6; and the reverse flow through the opening 8, ports16, 15 and 18 and thence through the left-hand basket and the opening 4for said basket. The pipe connections extending from the openings 4 ofthe strainer casing to the supply will preferably be opened into thesupply ata suitable distance from each other to avoid the discharge fromone being taken up by the other. In Fig. 8 I have also shown a by-pass40 controlled by a three-way cook 41 in the pipe line 35 and three-waycocks 42 to each of the connections to the source of supply of theliquid to be strained, whereby the reverse flow can be directed outsidethe strainer casing, when it is desired to remove a strainer element forrenewal or repairs.

Having thus described my invention I claim:

1. In a strainer, the combination of a plurality of stationary strainerelement-s, each adapted to be connected with a direct and reverse flowand means to confine the direct flow through one of said strainerelements while the other strainer element is open to the reverse flow,substantially as described.

2. In a strainer, the combination of a casing having a plurality ofstationary strainer elements, each adapted to be connected with a directand reverse flow, means to confine the direct flow to one of saidstrainer elements, said means being adapted to simultaneously open theother strainer element to the reverse flow, substantially as described.

3. In a strainer, the combination of a plurality of stationary strainerelements, each adapted to be connected with a source of supply of thefluid to be strained and each also being adaptedto be connected with asource of supply for flushing and means to direct the flow to bestrained through any one of said strainer elements while the otherstrainer element is open to the flow for flushing, substantially asdescribed.

4. In a strainer, the combination of a casing having a plurality ofstraining chambers, each having a stationary strainer element thereinand means to reverse the flow of the fiuid through any one of saidstrainer elements, substantially as described.

5. In a strainer, the combination of a casing having two strainingchambers, each having a strainer element therein adapted to be connectedwith a source of supply, each chamber also adapted to be connected witha flow in the opposite direction and means to reverse the How throughthe respective strainer elements, substantially as described.

6. In a strainer, the combination of a cas ing having two strainingchambers, each having a strainer element therein adapted to be connectedwith a source of supply and further adapted to have a direct and returnconnection with a receiving vessel and means to reverse the flow throughthe respective strainer elements, substantially as described.

7. In a strainer, the combination of a casing forming a plurality ofstraining cham bers and a valve chamber, a valve in said valve chamber,strainer elements in each of said straining chambers, said valve beingadapted to reverse the flow through any one of said strainer elements,substantially as described. Y

8. In astrainer, the combination ofa casvalve chambers having inlets andoutlets to the source of supply and to a receiving and dischargingvessel and a valve in said valve chamber adapted to reverse the flow ofthe fluid, substantially as described.

9. In a strainer, the combination of a casing having a plurality ofstraining chambers therein, each having inlets and outlets adapted to beconnectedwith the source of supply and with a receiving vessel, saidcasing also having a valve chamber and a valve in said chamber adaptedto reverse the flow of the fluid, substantially as described.

10. In a strainer, the combination of a casing having two strainingchambers therein and a valve chamber, each of said straining chambershaving an opening to the source of supply and to said valve chamber,said valve chamber having a direct and return opening adapted to beconnected with a receiver or vessel to be supplied, a hollow plug valvein said valve chamber with ports adapted to register with the openingsto the straining chambers and to said receiver or vessel whereby theflow of the fluid can be directed from the source of supply througheither one of said strainer elements to said receiver or vessel and backthrough the other strainer element to the source of supply,substantially as described.

11. In a straining apparatus, a plurality of strainer elements, eachhaving inlet and outlet connections to the source of supply of theliquid to be strained and inlet and outlet connections for a reverseflow, means to reverse the flow through the strainer elements and meansto by-pass the reverse flow outside of said strainer elements,substantially as described.

In testimony whereof I have hereunto aflixed my signature in thepresence of two witnesses;

. ELMER E. HAUER.

Witnesses:

OLIVER H. HAUSE, GROVER ILGEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

